Dialysis

Dialysis: Peritoneal dialysis

It is another dialysis method that purifies the blood of "waste" that the kidneys can no longer eliminate because of their failure (kidney failure).

In practice, this type of dialysis is more often proposed for patients with renal insufficiency, who must start to be dialysed.

Peritoneal dialysis is a simpler method for the patient than hemodialysis, and is done at home. This technique uses the peritoneum as a natural membrane to filter blood.

The principle of this dialysis is to inject into the peritoneal cavity of the abdomen, 1 to 3 liters of dialysis fluid (or dialysate), through a small catheter that passes through the skin and muscles of the abdomen. This liquid, introduced into the abdomen, extracts substances like urea, creatinine, potassium, etc., from the blood. After 5 to 6 hours, once it contains the substances removed from the blood, this liquid is recovered in a pocket.

The dialysis fluid is introduced and removed through a catheter: a flexible tube (about 10 cm outside the skin) on the side of the belly, which remains in place. The placement of this catheter requires a small surgical procedure, then 2 weeks of healing.

This peritoneal dialysis can be carried out continuously: introduction and withdrawal 3-4 times in 24 hours of 2 liters of dialysate. For the patient, it is not worth going to the hospital or to a dialysis center. Everything can be done at home or in a healthy place with maximum hygiene (isolated room, without draft): to empty the dialysate liquid contained in the peritoneum, and replace a new pouch containing the new dialysate .

There is also automated peritoneal dialysis avoiding too much manipulation on the part of the patient to renew the dialysate fluid. Automated peritoneal dialysis is performed at night. It is a specific device that takes care of it. During the day, the patient keeps the dialysate liquid in his abdomen, and in the evening, at home, the patient connects to the machine for about 8 hours, every night, to renew and purify the dialysate fluid.

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